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Frame ground switching – model ab-d25-r, Signal ground switching, Indicators – Dataprobe RSS Series User Manual

Page 39: Manual switches, Relays, Interface wiring, Ab-d25-r

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V130816E.R1

RSS Series

Page 39

6.3.2.

Frame Ground Switching

– Model AB-D25-R


Jumper selection allows Pin 1 Frame Ground to be either switched or tied
together and non-switched. Pin 1 can also be tied to the Frame of the
Chassis, or left isolated from the chassis.

6.3.3.

Signal Ground Switching


An additional set of jumpers provides the same switched/common, isolated or
grounded for Signal Ground. These jumpers control Pin 7 in the D25 model and Pin 5 in the D15 and D9
models. The circuit is the same as shown above replacing Pin 1 for the correct pin and SG Signal Ground for
FG, Frame Ground.

6.4.

Indicators


Two Red LEDs indicate Switch status A or B. LED's are driven by extra relay contacts.

6.5.

Manual Switches


Manual toggle switch on each card. These are momentary switches. Also controlled by RSS-16 front panel
Gang Control pushbuttons when the card’s jumper is configured for Gang control.

6.6.

Relays

Sealed Telephone relays. Gold clad contacts. Maximum Contact Current: 2 Amps @ 30 VDC
Special DS-3 and NET models: Hi Freq. Speeds up to 1 Gig Hz.

6.7.

Interface Wiring

6.7.1.

AB-D25-R

Conectors:

25 Pin D’Subminiature, Female

Leads Supported:

All 25 Pins Switched

Additional Information: Optional Jumper Configuration for

Unswitched Frame Ground Pin 1 (See Section 8.4.2) J10

and Signal Ground Pin 7 (See Section 8.4.3) J11